How much snow has Hassela gotten this season and over the last few ski seasons? Hassela gets an average annual snowfall of 64cm of snow per year and on average has 15 annual snowfall days. The current 10-year snowfall record is 30cm, the average snow depth at Hassela is 15cm. Check out Hassela historical snowfall using the grid below with average Hassela snow stats that includes: Average Snowfall, Max Base Depth, Biggest Snowfall, Snowfall Days and Average Base Depth. Click on the Annual Tab to see every year since the 2013-2014 season.